Remove unnecessary version constraint
Remove unnecessary version constraint

The current setup is complicated enough.

wspurgin/activeadmin,mrjman/activeadmin,mrjman/activeadmin,vraravam/activeadmin,maysam/activeadmin,maysam/activeadmin,cmunozgar/activeadmin,cmunozgar/activeadmin,gogovan/activeadmin,gogovan/activeadmin,javierjulio/activeadmin,varyonic/activeadmin,vytenis-s/activeadmin,wspurgin/activeadmin,javierjulio/activeadmin,waymondo/active_admin,siutin/activeadmin,vraravam/activeadmin,mauriciopasquier/active_admin,cmunozgar/activeadmin,vytenis-s/activeadmin,siutin/activeadmin,activeadmin/activeadmin,mrjman/activeadmin,SoftSwiss/active_admin,activeadmin/activeadmin,SoftSwiss/active_admin,maysam/activeadmin,varyonic/activeadmin,javierjulio/activeadmin,activeadmin/activeadmin,SoftSwiss/active_admin,wspurgin/activeadmin,deivid-rodriguez/activeadmin,vytenis-s/activeadmin,gogovan/activeadmin,waymondo/active_admin,deivid-rodriguez/activeadmin,deivid-rodriguez/activeadmin,varyonic/activeadmin,waymondo/active_admin,mauriciopasquier/active_admin,siutin/activeadmin,vraravam/activeadmin,mauriciopasquier/active_admin